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Finding the Fourth Proportional to 269,257.60, 403,886.40 and 248,262.40

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Solution

The fourth proportional to 269,257.60, 403,886.40 and 248,262.40 is: 372,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,257.60 : 403,886.40 = 248,262.40 : x
  2. Step 2: Convert to fraction form
    269,257.60/403,886.40 = 248,262.40/x
  3. Step 3: Cross multiply
    269,257.60x = 403,886.40 × 248,262.40
  4. Step 4: Simplify right side
    269,257.60x = 100,269,806,991.36
  5. Step 5: Solve for x
    x = 100,269,806,991.36/269,257.60
  6. Step 6: Final answer
    x = 372,393.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.